Kingspan Thermaroof TR26
High performance rigid Polyisocyanurate (PIR) flat roof insulation board
Can be used on flat roofs with mechanically fixed single-ply waterproofing membranes.
Fully compatible with most mechanically fixed single–ply waterproofing systems.
Compatible with most green roof systems.
Fibre–free core; manufactured with a blowing agent that has zero ODP and low GWP.
Ideal for new build and refurbishment.
Resistant to the passage of water vapour.
Thicknesses and Availability:
Available in most popular thicknesses from the manufacturer; short lead-times may apply as we may need to get stock in before delivering to site.
This Thermaroof Range includes the following readily available product thicknesses: 25mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 140mm and 150mm.
The folllowing thicknesses are manufactured to order: 40mm, 105mm, 115mm, 125mm, 130mm, 135mm, and 160mm; these may carry minimum order levels.
General information about Kingspan Thermaroof TR26
Flat roof insulating board
Kingspans high performance polyisocyanurate (PIR) foam board, Thermaroof TR26, is suitable for use in flat roofs waterproofed with mechanically fixed single-ply waterproofing and most green roof applications.
Kingspan Thermaroof TR26 is manufactured with Nilflam technology, a high performance fibre–free rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)
Faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture
|Thermal Conductivity||0.022 W/m·K|
|Compressive Strength||150 kPa at 10% compression||BS EN 826: 2013|
|Nominal Density||32 kg/m³|
|Vapour Resistance||> 100 MNs/gm||BS / I.S. EN 12086: 2013|
Buy Kingspan Thermaroof TR26
Limited stock of the most popular boards sizes may be held at some of our larger depots.
Where products need to be brought in from Kingspan, please allow approx. 1 week for delivery on stocked items (highlighted in green below in the properties section) and up to 3 weeks on made to order thicknesses. While Kingspan keep the majority of the popular thicknesses in stock, less popular thicknesses may carry a minimum order level.
Kingspan reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.
Please observe the 'Star Rating' indicators to assess availability.
Generally 1 or 2 days for delivery
Generally 1 to 5 days for delivery
Generally 5 to 10 days for delivery
Generally 5 to 15 days for delivery
Please call to check availability and approximate lead times
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
Product Performance and Guides
Product Performance, Manufacturer Certification, Downloads, and Installation Guides
While we have provided Thermal Resistance values for all thicknesses on the Kingspan TR26 datasheet, some thicknesses may not be readily available.
Items highlighted in green are generally held in stock by Kingspan.
|Kingspan TR26 25mm||25mm||1.10 m²K/W||1.11 kg/m²|
|Kingspan TR26 40mm||40mm||1.80 m²K/W||1.50 kg/m²|
|Kingspan TR26 50mm||50mm||2.25 m²K/W||1.80 kg/m²|
|Kingspan TR26 60mm||60mm||2.70 m²K/W||2.15 kg/m²|
|Kingspan TR26 70mm||70mm||3.15 m²K/W||2.50 kg/m²|
|Kingspan TR26 80mm||80mm||3.60 m²K/W||2.80 kg/m²|
|Kingspan TR26 90mm||90mm||4.05 m²K/W||3.25 kg/m²|
|Kingspan TR26 100mm||100mm||4.50 m²K/W||3.50 kg/m²|
|Kingspan TR26 105mm||105mm||4.75 m²K/W||3.65 kg/m²|
|Kingspan TR26 110mm||110mm||5.00 m²K/W||3.99 kg/m²|
|Kingspan TR26 115mm||115mm||5.20 m²K/W||4.01 kg/m²|
|Kingspan TR26 120mm||120mm||5.45 m²K/W||4.10 kg/m²|
|Kingspan TR26 125mm||125mm||5.65 m²K/W||4.42 kg/m²|
|Kingspan TR26 130mm||130mm||5.90 m²K/W||4.60 kg/m²|
|Kingspan TR26 135mm||135mm||6.10 m²K/W||4.78 kg/m²|
|Kingspan TR26 140mm||140mm||6.35 m²K/W||4.80 kg/m²|
|Kingspan TR26 150mm||150mm||6.80 m²K/W||5.10 kg/m²|
|Kingspan TR26 160mm||160mm||7.25 m²K/W||5.59 kg/m²|
Standards & Approval
Kingspan Thermaroof TR26 is manufactured to the highest standards in accordance with requirements BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single–ply roofing membranes).
Kingspan Thermaroof TR26 is also manufactured to the highest standards under a management system certified to ISO 9001: 2015 (Quality management systems. Requirements), ISO 14001: 2015 (Environmental Management Systems Requirements), BS / I.S OHSAS 18001: 2007 (Occupational Health and Safety Management Systems Requirements) and ISO 50001: 2018 (Energy Management Systems Requirements with Guidance for Use).
The use of Kingspan Thermaroof TR26 produced at Kingspan Insulation’s Pembridge and Selby manufacturing facilities is covered by BBA Certificate 16/5332.